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CancellationSignal

Enum CancellationSignal 

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pub enum CancellationSignal {
    Interrupt,
    Terminate,
}
Expand description

The OS signal that initiated a run-cancellation request, per EXEC-012.

Captured by the consuming binary’s signal handler and passed to exit_code_for so the resulting exit code reflects POSIX convention (128 + signal_number, per EXEC-021).

This type is intentionally distinct from crate::process::Signal (which is the EXECUTOR-to-child signal vocabulary and includes Kill). CancellationSignal is INCOMING from the OS to the haz binary; only SIGINT and SIGTERM are user-installable cancellation sources (SIGKILL is uncatchable).

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Interrupt

SIGINT, the interactive interrupt (typically Ctrl+C in a foreground shell). POSIX signal number 2.

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Terminate

SIGTERM, the polite-termination signal. POSIX signal number 15.

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impl CancellationSignal

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pub const fn posix_number(self) -> i32

POSIX signal number for this cancellation signal.

Returns 2 for Self::Interrupt and 15 for Self::Terminate.

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impl Clone for CancellationSignal

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fn clone(&self) -> CancellationSignal

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CancellationSignal

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Hash for CancellationSignal

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for CancellationSignal

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fn eq(&self, other: &CancellationSignal) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for CancellationSignal

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impl Eq for CancellationSignal

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impl StructuralPartialEq for CancellationSignal

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V